baber/WOPTO huggingface dataset:
Patent DE-3822565-A1 (DE)
Title: Automatic clamping device
Inventor: LUDEWIGS OTTO
IPC: B23B31/20
Filed: 1988-07-04
Abstract: In machine tools with a work spindle, the problem often occurs of having to locate the workpiece between centres with an automatic loading system and of realising in the process rotary driving free of play without radial deflecting forces impairing the true-running accuracy of the workpiece. To achieve this object, a self-contained clamping unit is taken as a basis, which consists of a housing, a clamping sleeve longitudinally displaceable therein hydraulically, and an interchangeable, rotationally locked collet, and it is proposed that the clamping unit be mounted in a movable and floating manner in a flanged bush which is concentrically fastened to the work spindle, the floating centre being located at a distance A from the clamping point of the collet on the axis of the work spindle. In addition, at least one rotary driver is provided at the flanged bush. The rotary driver is located radially above the floating centre and engages free of play in the clamping unit only in the peripheral direction of the work spindle. Finally, there are spring elements which align the clamping unit coaxially to the work spindle before every automatic mounting of the workpiece. <IMAGE>
Patent DE-3825086-A1 (DE)
Title: Fully implantable blood pump
Inventor: MARTENS JOERN
IPC: A61M60/892
Filed: 1988-07-23
Abstract: Due to miniaturisation of drive, control electronics and mechanical system together with the nested design of the connecting rod, dies, drive and mechanical control system in the passage of the approximately annular blood bags, the construction, according to the invention, of a fully implantable blood pump corresponds to an artificial heart (TAH-TOTAL ARTIFICIAL HEART) which permits the affected patient to lead a virtually normal life. Besides the advantages of the implanted part, disclosed in my applications OS DE 3602727, DE 3724810 and DE 3722161, with regard to haemodynamics (atrial, wind kessel and Anrep effects, central blood flow, flow in the same direction in the blood bags and valves, "physiological blood pressure course" and the like) and the advantages such as good fastening in the body of the patient, the construction according to the invention also has the advantage of an "extended Starling's effect" (according to the heart law of Frank Starling). Regulation of the stroke volumes is effected differently for each of the two functional units (50, 51) and hence for the two circulations. This regulation facilitates quick volume compensation between the two circulations (right-left balance).
Patent DE-3840865-A1 (DE)
Title: Pressure reducing valve
Inventor: ZENKER SIEGFRIED
IPC: G05D16/10
Filed: 1988-12-03
Abstract: A hydraulic pressure reducing valve is specified, having a housing (1) which has a housing bore (2) into which a delivery channel (5) and a discharge channel (4) open, and a valve slide element (3), which has at least one control opening (10) on its circumference and is loaded in one axial direction with the reduced pressure (Pred) and in the other direction by a spring (11). This pressure reducing valve is intended to be improved in such a way that its output pressure does not exceed a predetermined value. For this purpose, a passage bore (9) is provided in the valve slide element (3), running axially, the end of the valve slide element (3) loaded by the spring (11) is designed as a valve seat, against which an axially movable seating valve closure element (12) is pressed by means of the spring (11) and a return channel (6) is provided, which is arranged on the side of the valve slide element (3) on which the spring (11) is arranged, and opens into the housing bore (2). <IMAGE>
Patent DE-3908898-A1 (DE)
Inventor: FENDER COVERT EUGENE
IPC: B65H54/76
Filed: 1989-03-17
Abstract: For forming a coil of rod product that will remain tangle-free as it is paid off into a drawing machine an orbital coiling head 30 is fixed to a vertical shaft 10 carrying a pair of planet gears 19, 22 on a shaft 18 orbiting with the head 30. A top gear 19 meshes with a stationary sun gear 20 and the bottom gear 22 meshes with a sun gear 23 coupled to a coiling drum carried by the shaft 10. This causes the drum to avoid rotation, and only oscillation occurs to cause the formed coils 40 to be slightly spaced therebelow. A clutch 21 at the upper gear 19 allows gear slip to prevent damage to the shaft 10. <IMAGE>
Patent DE-3909249-A1 (DE)
Title: DNA with genetic information of glutamine synthetase and use thereof
Inventor: SAGAI HITOSHI
IPC: C12N1/20
Filed: 1989-03-21
Abstract: A DNA which comprises a base sequence which encodes a specific amino-acid sequence of a structural polypeptide of glutamine synthetase is described. Also described is the transformant which harbours this DNA, and a polypeptide which has been prepared by expression of the genetic information in this DNA by means of the said transformant, and a process for the preparation of a polypeptide of this type. The process represents an efficient method for producing high-purity glutamine synthetase and comprises the cultivation of a transformant which has the said DNA, which is foreign to the host microorganism, to bring about expression of the genetic information of this DNA by the transformant and collection of the structural polypeptide of glutamine synthetase from the culture broth.
Patent DE-3913984-A1 (DE)
Title: Support for a false floor
Inventor: RAUER NORBERT
IPC: E04F15/024
Filed: 1989-04-27
Abstract: The invention relates to a support for a false floor, having a supporting strut, of which the lower end is connected to a supporting foot for supporting the false floor and the upper end is connected to a supporting head on which to rest the false floor. The aim of the invention is to provide a support which can be produced with a lower outlay, in terms of materials and labour, than known supports. This object is achieved according to the invention in that the supporting head exhibits an essentially disc-shaped upper part and a central attachment which is connected to the upper part and is intended for connection to the supporting strut, and the upper part exhibits four beads which are each guided from the border as far as the attachment and deepen and widen towards the attachment.
Patent DE-3914538-A1 (DE)
Title: Safety mechanism for breech of gun - consists of spring-loaded lever which prevents access to actuating toothed rack
Inventor: BARTELS WOLFGANG
IPC: F41A7/08
Filed: 1989-05-02
Abstract: The gun with a barrel (12) has a breech (10) which is locked by a wedge (16). The breech (10) can be opened by an internal mechanism which is actuated by a shaft (14). This shaft (14) carries a pinion which meshes with a sliding toothed rack which enables the shaft (14) to be rotated. In order to prevent inadvertent opening of the breech the exposed end of the toothed rack is protected by a spring loaded mechanism (20). When the mechanism is swung away from its safety position the spring holds the mechanism clear of the end of the toothed rack so that it can be actuated. USE - Artillery and guns for tanks.
Patent DE-3926635-A1 (DE)
Title: Electrocoating with lacquer contg. magnetic particles - using permanent magnet inside coating bath to improve corrosion protection of edges of substrate
Inventor: UEDA TETSUO
IPC: C25D15/00
Filed: 1989-08-11
Abstract: Method of electrocoating s substrate with a lacquer consists of using a lacquer containing 0.01-30 wt.% magnetic particles having a magnetisation value of 0.3-90 emu/g and carrying out the coating in a magnetic field. The magnetisation value is pref. 10-70 emu/g. USE/ADVANTAGE - Esp. in automobile industry. Enables excellent corrosion resistance in the edge areas of the substrate.
Patent DE-3929315-A1 (DE)
Title: Pipe bending machine with insertable hollow spindle
Inventor: GEIL KLAUS
IPC: B21D9/05
Filed: 1989-09-04
Abstract: The machine uses a mandrel guided inside a hollow, rotary spindle, sliding axially w.r.t. to tongs enclosing the pipe. Opposite the pipe end held by the tongs (3) is an ejector (8), movable coaxially to the mandrel (2). The ejector works in a guiding and centring bore (11) in the spindle (4), and, in turn, has one or more plain inner bearings (10) guiding and centring the mandrel. With two such bearings, one can be fitted at the connecting point (9) to the, pref.  pneumatic, drive mechanism, and the other one in a tubular spigot (12) extending towards the tongs.
Patent DE-3936575-A1 (DE)
Title: Workshop trolley with separate compartments for tools and materials - is equipped with separate doors all locked with one single bar
Inventor: HOLMER ALFONS
IPC: B25H5/00
Filed: 1989-11-03
Abstract: A workshop trolley for carrying tools and materials has lockable doors for different compartments. Inserts (11) are in the form of separating partitions from base (8) to cover (2) on which are racks, holders, hooks or clips to take various different tools. Outside is a horizontal locking bar (10) which prevents any of the doors being opened. USE/ADVANTAGE - All the different compartment doors are locked with a single bar.
Patent DE-3937679-A1 (DE)
Title: Outlet control for two=stroke IC engine - has piston shaped control member forming part of outlet channel
Inventor: SINGER ANDREAS DR ING
IPC: F02D13/02
Filed: 1989-11-13
Abstract: The arrangement regulates the outlet control angle of a two-stroke combustion engine by an element which narrows the outlet channel cross section. The element takes the form of a piston shaped control member (3). This is simultaneously a part of the outlet channel  (5) and movable parallel to or at an angle to the cylinder axis. ADVANTAGE - Method of regulating the outlet angle of a two stroke engine which ensures a favourable torque curve over a wide range of speeds.
Patent DE-3941343-A1 (DE)
Inventor: GOJON ROGER LEON
IPC: F16C17/10
Filed: 1989-12-14
Abstract: A method of making a journal bearing comprises forming a flange having a lip 40 on the inner periphery of a semicircular thrust bearing element, forming an axially directed flange portion 52 on part of the periphery of an end face of the journal bearing, and deforming the flange portion around the lip with a tool 50. The construction allows relative movement between the constituent parts without fear of separation. <IMAGE>
Patent DE-3941465-A1 (DE)
Title: Firing furnace for raw materials - circulating gas through heating tube and controlling oxygen level
Inventor: FEIST HORST JULIUS ING GRAD
IPC: C04B35/532
Filed: 1989-12-15
Abstract: A furnace system for processing of raw materials, such as electrodes for graphite treatment or coal products in the form of coke or graphite has a heating tube (1) coupled to a preheat chamber (2). The raw material is supplied through a tube (8) and leaves from the end of the heater tube (9). Gas and air are supplied (4, 5) to a heating stage, the supply line (74) being coupled to a series of feed lines (46, 53). A blower (116) provides circulation and the gas is controlled to maintain a stoichometric condition such that surplus oxygen is avoided in the mixture. ADVANTAGE - Safe control of gas matching supply to actual requirements.
Patent DE-4000238-A1 (DE)
Inventor: MEIER MICHAEL DR
IPC: C07C45/46
Filed: 1990-01-06
Abstract: Process for preparing isomer-free 2,4,6-trimethylacetophenone by reacting mesitylene with an acetylating agent in the presence of aluminium chloride, characterized in that the reaction takes place in excess mesitylene as the solvant and in the absence of moisture at temperatures from -10 to approximately +50  DEG C.
Patent DE-4003580-A1 (DE)
Title: Central locking system for vehicle - has antitheft protection coupled to lock action to provide fail-safe protection
Inventor: NEUHAUS FRIEDRICH
IPC: E05B77/48
Filed: 1990-02-07
Abstract: The separate locks are fitted with a separate control as well as a central control to operate all the locks. The anti-theft protection secures each lock and operates at the same time, providing failsafe protection. A controller (ST) has a first switching system (T1,R1) which operates on the lock mechanisms, while a second switching system (T2,R2) operates on the blocking mechanisms of the anti-theft protection. - A security fuse (S) is in line with the control systems and the locking systems and the two switching systems are separated by a time delay circuit. A third switching system operates the release of the locks.
Patent DE-4008638-A1 (DE)
Title: Pneumatic false twister - has funnel between suction roller and jet to move away from roller for cleaning
Inventor: STAHLECKER FRITZ
IPC: D01H1/115
Filed: 1990-03-17
Abstract: In the appts. for pneumatic false twisting, a perforated suction roller (8) with inner suction is between the drawing unit (1) and the twisting jet (13), with a yarn guide surface formed on part of its circumference. An entry funnel (22) is at the entry to the twisting jet (13) which covers part of the circumference of the suction roller (8). It is supported by a mounting (23,24) so that it can move away from the yarn guide section of the suction roller (8) into a servicing position.
Patent DE-4011530-A1 (DE)
Title: Two-layer liq. crystal cell - has compensating layer contg. liq. crystal linked 1,4-phenylene and trans-1,4-cyclohexylene rings
Inventor: RIEGER BERNHARD DR
IPC: C09K19/02
Filed: 1990-04-10
Abstract: A liq. crystal (LC) cell contains 2 twisted nematic LC layers (A) and (B), in which at least one layer (A) is triggered, and in which the optical path differences in the 2 layers are essentially balanced. The LC used in the opt. un-triggered layer (B) is based on a dielectrically neutral component of formula: R-Phe-V-R (IA), R-Cyc-Phe-W-R (IB) or R-Phe-CC-Phe-Z3-(A)m-R (IC), and a dielectrically positive component of formula: R-X-Phe-CN (IIA), R-X-Cyc-CN (IIB) or R-X-Phe-COO-Phe-CN (IIC). Phe = 1,4-phenylene; Cyc = trans-1,4-cyclohexylene; R = 1-15C alkyl, oot. with 1 or 2 non-adjacent CH2 gps. replaced by O, CO, CH=CH and/or C(Hal)2; V = Z1-(A)n- (with Z1 = OCO or single bond); A = Phe or Cyc; W = Z1-Phe-Phe-, -Z1-Phe-Cyc-, -Z2-Cyc-Cyc- or -Z1-Phe-C2H4-Cyc- (with Z2 = CH2CH2, COO, OCO or single bond); X = -(A)-Z2-, -(2,5-pyridyl)-Z2- or -(2,5-(1,3-dioxolanyl))-Z3-(with Z3 = CH2CH2 or single bond); n = 1 or 2; m = 0 or 1. USE/ADVANTAGE - The LC components are useful in LC cells. The LC mixts. used for the compensating layer (B) have good values for dispersion, temp.-dependence of dispersion and birefringence (which can be optimised for partic. applications), together with high thermal and UV stability; the use of such LC layers (B) enables economical optimisation of the optical path difference ratio, and gives LC cells with optimum electro-optical properties. (13pp Dwg.No.0/0)
Patent DE-4011910-A1 (DE)
Inventor: LYSEN HEINRICH
IPC: G01P15/09
Filed: 1990-04-12
Abstract: The proposal is for a device for measuring acceleration via piezoelectric transducers. The device has a prior art bearer (14, 16) with a parallel main shaft for acceleration measurement, a seismic mass (20, 22) held so as to move in relation to the bearer and piezoelectric units (12, 12') acting in pairs and connected so as to be excited, in which the arrangement is such that pyroelectric effects are compensated. According to the invention, the bearer has a cross-member (16) extending transversely to the main shaft and the piezoelectric units excited by compression are fitted thereon on its opposite sides in relation to the direction of the main shaft between the latter and the seismic mass (20, 22). This results in temperature-independence and insensitivity to ground expansion and acceleration of any other kind and direction than linear and parallel to the main shaft.
Patent DE-4012000-A1 (DE)
Title: Non-alcoholic refreshing beverage contg. gluconic acid - Prepd. by fermentation of glucose in malt drink or aq. plant extract
Inventor: LEIPOLD DIETER
IPC: A23F3/10
Filed: 1990-04-12
Abstract: Nonalcoholic refreshing beverage is obtd. by treating a conventional malt drink or an aq. extract of pts. of one or more plants, which are harmless toxicologically and in food chemistry and contain a N source for nutrition of  micro-organisms, with glucose or a sugar contg. glucose; treating the soln. with a micro-organism which can convert glucose to gluconic acid; fermentation with at least occasional aeration; stopping fermentation; and, if desired, filtering and/or carbonating the fermented soln. Nonalcoholic refreshing beverage consists of a vegetable kvass contg. caffeine, which is diluted with 0-20, esp.  0-8 vol.% water and carbonated. It contains less than 0.5 vol.% EtOH and had pH less than 3.0 esp. 2.5-2.8 before carbonation and dilution. The claims also cover the kvass for making this beverage and the prodn. of the beverage. USE/ADVANTAGE - The beverage is produced entirely from natural starting materials by biological fermentation and acidification is unnecessary.
Patent DE-4012859-A1 (DE)
Inventor: FECKER RAINER DIPL ING
IPC: B65H45/14
Filed: 1990-04-23
Abstract: In a buckle folder with at least two folding points (F1, F2) formed in each case by a folding-roller pair (W1/W2; W2/W3), and a draw-in device which consists of two advance rollers (T1, T2) and which defines the advance speed for the material to be folded, the draw-in device lies in an advance path (4) running past the first folding point (F1). Arranged directed towards the first folding point are two insert supplying devices, a first behind and a second in front of the draw-in device. In order that an insert can be inserted alternatively into the first or into the second fold, the first folding point (F1) is assigned a knife-like deflection member (6) which can be moved towards the first folding point (F1) with simultaneously fold-forming deflection of the material to be folded and individually actuated for each folding process by an electronic control device (21). Directly in front of the folding pocket (25) lying between the first and the second folding point (F2), there is arranged as second deflection member (26) an electromagnetically controllable deflector for the material to be folded, which, after the material to be folded has run into the folding pocket (25), can be moved out of its rest position towards the second folding point (F2) with simultaneously fold-forming deflection of the material to be folded (43, 55). 
<IMAGE>
Patent DE-4017633-A1 (DE)
Title: Automatic cassette selection equipment for optical discs - uses electronically controlled transporter to collect cassette from magazine and deliver to play back device
Inventor: ICHIJIMA AKIRA
IPC: G11B17/22
Filed: 1990-05-31
Abstract: The apparatus comprises a cassette magazine (14) containing a number of compartments (22-1 to 22-25) with cassette carriers (24-1 to 24-25), an optical reading device (26a) with an input slot (27a), and a means of transporting cassettes (12) between the magazine (14) and the reader (26a). Preferably, a transport mechanism (20, 30), driven by a circuit (51), )collects the cassette (12) from the magazine (14) and delivers it to the input slot (27a). Ideally, the transporter (32) should accommodate two cassettes, and a second optical reading device (26b) with a second input slot (27b) is provided. A device (50) detects the position of the transporter. USE - Optical disc information retrieval equipment.
Patent DE-4023216-A1 (DE)
Title: Novel chiral oxazolidinone(s) - useful as dopants in liq. crystal mixts. with short switching times
Inventor: SCHEROWSKY GUENTER PROF DR
IPC: C07D413/12
Filed: 1990-07-21
Abstract: Novel chiral oxazolidinones are of formula (I) or (II).  R1 = opt. branched 1-16C alkyl or 3-16C alkenyl each opt. contg.  asymmetric C atoms, etc.; R2 and R3 = H, 1-12C alkyl (opt. substd.) phenyl or cyclohexyl (opt. substd.); j, l and n = 0, 1 or 2;  k and m = 0 or 1 with the following provisos: when j and/or l = 0, k = 0; when n = 0, m = 0; and j+l+n = 1-3; A1 and A2 = Ph, cyclohexyl, pyrimidin-2- or 5-yl, pyridin-2- or 3-yl, pyridazin-3-yl, pyrazin-2-yl, thiophen-2-yl, etc.; A3 = Ph, cyclohexyl, pyrimidin-2- or 5-yl, pyridin-2- or 3-yl or pyridazin-3-yl; M1 and M2 = -CO.O-, -O.CO-, -CH2.CH2-, -CH=CH-, -CH2.O- or -O.CH2-; and X = -O.CH2-, -CH2-, -C(O).O-, -O.C(O)-, -CH2.O- or -C2H4-. USE/ADVANTAGE - The use of (I) and (II) as doping agents for ferroelectric liq. crystal mixts. is claimed, with the mixt.  pref. having a smectic phase. Also claimed are electrooptical switches and display devices which contain a liq. crystal mixt.  including (I) or (II) together with 2 electrodes, 2 carrier plates and at least one orientation layer. (I) and (II) impart short switching times to the liq. crystal mixts. and are suitable for producing helix compensation in the mixts. Also, addn.  of small amts. of (I) to tilted smectic phases causes strong twisting in the cholesteric phase.
Patent DE-4023402-A1 (DE)
Title: Paper collection tray for printer - has raised guide preventing electrostatic charge formation caused by reciprocating motion of paper by printer
Inventor: GOTO KAZUO
IPC: B41J13/10
Filed: 1990-07-23
Abstract: A paper collection tray for a printer has a pair of guide rails (2) mounted on it at a distance apart in the direction of the paper width. The rails guide the paper (6) on both longitudinal sides during its reciprocal motion which is part of a repetitive printing process. The tray has a number of holes (a,b) for the guide rails (2) to enable them to be set for papers of different widths. USE/ADVANTAGE - Printers which move the paper in and out for multiple printing. Eliminates paper blockages by preventing electrostatic charge formation.
Patent DE-4024073-A1 (DE)
Title: Roller-shutter prodn. method - involves coiling slats anticlockwise after joining together
Inventor: GEORGES MARCEL
IPC: E06B9/11
Filed: 1990-07-28
Abstract: The continuous production method is for roller-shutters or  blinds incorporating double-skinned slats hinging together via connecting pieces preventing them pulling apart. After fitting the slats (1,2) together via the connecting pieces (4,4') they are coiled in the anti-clockwise direction. The slats already coiled can be arranged on emerging from the machine to lie on those which have not been. USE/ADVANTAGE - Easy handling of roller shutters or  Venetian blinds during mfr.
Patent DE-4026627-A1 (DE)
Inventor: HARTMANN UWE DIPL ING
IPC: B60T8/00
Filed: 1990-08-23
Abstract: A vehicle is disclosed in which the slip angles are measured at the axles and varied in the event of change so that a reference ratio is maintained.
Patent DE-4026837-A1 (DE)
Title: Control method for processing voltage desired values - controlling valves of inverter fed with specified input DC voltage to give continuous control of output voltage
Inventor: BRAUN MICHAEL DR ING
IPC: H02M7/5387
Filed: 1990-08-24
Abstract: The sequence (Z1.....Z8) and the durations (kj, Tpi) of the ignition signals (Sj) are so determined that the voltage desired values (U,F) within one of the m represented intervals (Tpi) are approximated for the quasi continuous control of the output voltage (uR, US, uT) of the pulse DC-AC inverter (2). The interval lengths of this represented interval (Tpi) alter over a fundamental frequency cycle, with an operation having a constant voltage amount (u) and a constant frequency (f) according to a given equation involving degree of modulation, angle of the voltage desired value, the sequence switching function and the average represented interval. USE/ADVANTAGE - Control of pulse inverter. Additional losses due to distortion current minimised, without exceeding number of switchings per inverter value and cycle duration of voltage fundamental oscillation due to max. switching frequency permitted.